This part repeats a couple more times, and it may seem like the meaning is straightforward and doesn’t need repeating, but it’s repeated a number of times in the text. I think it’s because we truly need to grasp this deep down. When we’re stressed, when we’re hurting or overwhelmed, where is our first stop? Where do we look to first? What’s our first, instant thought about how to take care of something? It needs to be our one mind. It’s connected to everything inside and outside, and so can provide energy and/or guidance.
My one mind is the Bodhisattva of Compassion,
so I return to my one mind and rely upon it.
내 한마음 그대로 관세음이신 고로 내 한마음에 귀의하오니,
Wake Up and Laugh! 
Beautiful, thank you for writing that 🙏